No. I do not think so.
I own a basset. They are hounds, they follow their nose. This nose tends to track scents much better than their legs can carry them. Then, they nap. When they wake up. Well, they don’t really remember where they are.
They are generally great dogs, it does not shock me at all that it went right to you. They are very very friendly.
Take care of him, but keep looking for his owner. Sadly for you, they will likely turn up. They could be a ways away from where you found him.
Just be ready for the chance that you will have to give him back.
The Basset’s owner might be so tired of the runaway drama that they might say fine, go find what your heart wants.
These are great dogs, they just track as they were bred to, and it’s nothing personal to the family who bought, cared for, and now are missing. Bassets weigh in around 70 lbs, and with the low clearance, can wander for 50 miles chasing that fox, or lynx.